What's the reason why the fan doesn't turn?

The cooling fan installed in the air purifier turns around and does not turn. What's the matter? There are only two cases, one is the quality problem of the fan itself, the other is the insufficient anti-attack ability.

For example, the power design is too large, for a long time, the temperature keeps rising, and finally the machine burns. For example, the voltage of the purifier is a little higher than the rated voltage of the cooling fan, which causes the chip of the cooling fan to burn. Normally speaking, the working voltage range of the cooling fan should be ensured to float up and down at the rated voltage of /-10%. No problem with movement

The second is the most easily overlooked. The interference of static pressure on the cooling fan is very common. It is also very common to see the static pressure in the air purifier reach tens of thousands of volts. So I watched the fan turn around without turning around. Once again, I turned on the electricity, moved, and could not turn up. This situation is basically that the chip of the cooling fan has been destroyed.

Baishun Xin Electronics has rich experience in anti-jamming technology for heat dissipation fans, which can shield the static interference very well.